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MELBOURNE, AUSTRALIA - JANUARY 15: Denis Shapovalov of Canada plays a forehand in his first round match against Stefanos Tsitsipas of Greece on day one of the 2018 Australian Open at Melbourne Park on January 15, 2018 in Melbourne, Australia. (Photo by Michael Dodge/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 15:  Denis Shapovalov of Canada plays a forehand in his first round match against Stefanos Tsitsipas of Greece on day one of the 2018 Australian Open at Melbourne Park on January 15, 2018 in Melbourne, Australia.  (Photo by Michael Dodge/Getty Images)